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Krittanai S, Choonong R, Butdapheng K, Jabsanthia J, Sakamoto S, Putalun W. Construction of a monoclonal antibody against glabridin (2G4) and development of an enzyme-linked immunosorbent assay. PHYTOCHEMICAL ANALYSIS : PCA 2023. [PMID: 37188651 DOI: 10.1002/pca.3237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/27/2023] [Accepted: 04/30/2023] [Indexed: 05/17/2023]
Abstract
INTRODUCTION Glabridin is a unique isoflavonoid found only in Glycyrrhiza glabra L. The pharmacological effects of glabridin are well established, especially for beauty- and wellness-related uses, such as antioxidant, anti-inflammatory, ultraviolet (UV) protection, and skin-lightening effects. Therefore, glabridin is often found in commercial products such as creams, lotions, and dietary supplements. OBJECTIVE This study aimed to develop an enzyme-linked immunosorbent assay (ELISA) using a glabridin-specific antibody. METHOD Immunogen conjugation of glabridin-bovine serum albumin was performed via the Mannich reaction, and the resulting conjugates were injected into BALB/c mice. Subsequently, hybridomas were produced. An ELISA method for glabridin determination was developed and validated. RESULT A highly specific antibody against glabridin was produced using clone 2G4. The assay range for the determination of glabridin was 0.28-7.02 μg/ml, with a detection limit of 0.16 μg/ml. The validation parameters in terms of accuracy and precision met the acceptable criteria. Standard curves of glabridin in various matrices were compared to evaluate the matrix effect on human serum using ELISA. Standard curves of the human serum and water matrix were obtained in the same manner, and the measurement range was 0.41-10.57 μg/ml. CONCLUSION The developed ELISA method was used to quantify glabridin in plant materials and products with high sensitivity and specificity, and has potential applications in quantifying compounds in plant-derived products and human serum samples.
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Affiliation(s)
- Supaluk Krittanai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | | | | | - Jakkrit Jabsanthia
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
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Nuntawong P, Putalun W, Tanaka H, Morimoto S, Sakamoto S. Lateral flow immunoassay for small-molecules detection in phytoproducts: a review. J Nat Med 2022; 76:521-545. [PMID: 35171397 PMCID: PMC9165253 DOI: 10.1007/s11418-022-01605-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/29/2022] [Indexed: 11/10/2022]
Abstract
Phytoproducts are involved in various fields of industry. Small-molecule (Mw < 900 Da) organic compounds can be used to indicate the quality of plant samples in the perspective of efficacy by measuring the necessary secondary metabolites and in the perspective of safety by measuring the adulterant level of toxic compounds. The development of reliable detection methods for these compounds in such a complicated matrix is challenging. The lateral flow immunoassay (LFA) is one of the immunoassays well-known for its simplicity, portability, and rapidity. In this review, the general principle, components, format, and application of the LFA for phytoproducts are discussed.
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Affiliation(s)
- Poomraphie Nuntawong
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products Using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen, Khon Kaen, Thailand
| | - Hiroyuki Tanaka
- School of Pharmacy, Sanyo-Onoda City University, 1-1-1 Daigakudouri, Sanyo-onoda-shi, Yamaguchi, 756-0884, Japan
| | - Satoshi Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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Krittanai S, Pichetpongtorn P, Sakamoto S, Putalun W. Monoclonal antibody-based immunoassay for the specific quantification of licochalcone A: an active chalcone in licorice. FOOD AGR IMMUNOL 2022. [DOI: 10.1080/09540105.2022.2053948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Supaluk Krittanai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | | | - Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
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Sae-Foo W, Krittanai S, Juengsanguanpornsuk W, Yusakul G, Sakamoto S, Putalun W. Fragment antigen-binding (Fab) antibody-based lateral flow immunoassay for rapid and sensitive detection of potent phytoestrogen, deoxymiroestrol. J Nat Med 2021; 75:1043-1049. [PMID: 34106388 DOI: 10.1007/s11418-021-01539-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 06/02/2021] [Indexed: 10/21/2022]
Abstract
Pueraria candollei is an ingredient of Thai herbal medicine, dietary supplements, and cosmetics. The in vitro and in vivo studies of this plant supported anti-osteoporotic activity and used for hormone replacement therapy. Deoxymiroestrol shows the most potent phytoconstituent in tuberous root of P. candollei with estrogenic activity. The quality controls are important for good agricultural practice (GAP) and good manufacturing practice (GMP) of plant-derived raw materials. The rapid detection of lateral flow immunoassay (LFIA) using colloidal gold is simply method, easy visualize detection and produce less waste than conventional chromatographic detection. In this study, LFIA for qualitative detection of deoxymiroestrol using antigen-binding fragment antibody (Fab) was developed. The result showed that the developed LFIA displays specific detection of deoxymiroestrol. Cross reactivity of this method was analyzed with miroestrol, isomiroestrol and methylisomiroestrol which showed 39.97%, 7.71% and 5.72%, respectively. After optimal condition, limit of detection (LOD) for deoxymiroestrol is 250 ng/ml. Plant samples were applied to strip test compare with indirect competitive ELISA using polyclonal antibody to confirm the application of LFIA. The results of LFIA method were comparable with those from ELISA. This developed lateral flow immunoassay can apply to detect deoxymiroestrol for the rapid testing. The developed method can use for quality control in plant samples as deoxymiroestrol is biomarker compound in P. candollei.
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Affiliation(s)
- Worapol Sae-Foo
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Supaluk Krittanai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
| | | | - Gorawit Yusakul
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand
| | - Seiichi Sakamoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand.
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Krittanai S, Kitisripanya T, Udomsin O, Tanaka H, Sakamoto S, Juengwatanatrakul T, Putalun W. Development of a colloidal gold nanoparticle-based immunochromatographic strip for the one-step detection of miroestrol and puerarin. Biomed Chromatogr 2018; 32:e4330. [DOI: 10.1002/bmc.4330] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 06/05/2018] [Accepted: 06/27/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Supaluk Krittanai
- Faculty of Pharmaceutical Sciences; Khon Kaen University; Khon Kaen Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University; Khon Kaen University; Khon Kaen Thailand
| | - Tharita Kitisripanya
- Department of Pharmacognosy, Faculty of Pharmacy; Mahidol University; Bangkok Thailand
| | - Orapin Udomsin
- Faculty of Pharmaceutical Sciences; Khon Kaen University; Khon Kaen Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University; Khon Kaen University; Khon Kaen Thailand
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical Sciences; Kyushu University; Fukuoka Japan
| | - Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences; Kyushu University; Fukuoka Japan
| | | | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences; Khon Kaen University; Khon Kaen Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University; Khon Kaen University; Khon Kaen Thailand
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Zhang Y, Xiao W, Kong H, Cheng J, Yan X, Zhang M, Wang Q, Qu H, Zhao Y. A Highly Sensitive Immunochromatographic Strip Test for Rapid and Quantitative Detection of Saikosaponin d. Molecules 2018; 23:molecules23020338. [PMID: 29415494 PMCID: PMC6017486 DOI: 10.3390/molecules23020338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/23/2018] [Accepted: 02/01/2018] [Indexed: 01/13/2023] Open
Abstract
A quantitative lateral-flow immunoassay using gold nanoparticles (AuNPs) conjugated with a monoclonal antibody (MAb) against saikosaponin d (SSd) was developed for the analysis of SSd. The AuNPs were prepared in our laboratory. The AuNPs were polyhedral, with an average diameter of approximately 18 nm. We used the conjugation between AuNPs and MAbs against SSd to prepare immunochromatographic strips (ICSs). For the quantitative experiment, the strips with the test results were scanned using a membrane strip reader, and a detection curve (regression equation, y = -0.113ln(x) + 1.5451, R² = 0.983), representing the averages of the scanned data, was obtained. This curve was linear from 96 ng/mL to 150 μg/mL, and the IC50 value was 10.39 μg/mL. In this study, we bring the concept ofPOCT (point-of-care testing) to the measurement of TCM compounds, and this is the first report of quantitative detection of SSd by an ICS.
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Affiliation(s)
- Yue Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Wei Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., 58 Jiangning Industrial Park Kangyuan Road, Lianyungang, Jiangsu, 210000, China.
| | - Hui Kong
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Jinjun Cheng
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Xin Yan
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Meiling Zhang
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Qingguo Wang
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Huihua Qu
- Centre of Scientific Experiment, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Yan Zhao
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
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Wang C, Yang L, Chang G. High performance polyazaindole as a novel acid fluorescent sensor with a tunable ICT effect. POLYMER SCIENCE SERIES B 2017. [DOI: 10.1134/s1560090417050177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yan X, Zhao Y, Zhang Y, Qu H. Monoclonal Antibodies and Immunoassay for Medical Plant-Derived Natural Products: A Review. Molecules 2017; 22:E355. [PMID: 28245640 PMCID: PMC6155174 DOI: 10.3390/molecules22030355] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 02/16/2017] [Accepted: 02/19/2017] [Indexed: 02/05/2023] Open
Abstract
Owing to the widespread application value, monoclonal antibodies (MAbs) have become a tool of increasing importance in modern bioscience research since their emergence. Recently, some researchers have focused on the production of MAbs against medical plant-derived natural products (MPNP), the secondary metabolites of medical plants. At the same time, various immunoassay methods were established on the basis of these MPNP MAbs, and then rapidly developed into a novel technique for medical plant and phytomedicine research in the area of quality control, pharmacological analysis, drug discovery, and so on. Dependent on the research works carried out in recent years, this paper aims to provide a comprehensive review of MAbs against MPNP and the application of various immunoassay methods established on the basis of these MAbs, and conclude with a short section on future prospects and research trends in this area.
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Affiliation(s)
- Xin Yan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Yan Zhao
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Yue Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Huihua Qu
- Center of Scientific Experiment, Beijing University of Chinese Medicine, Beijing 100029, China.
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Qu H, Zhang Y, Qu B, Kong H, Qin G, Liu S, Cheng J, Wang Q, Zhao Y. Rapid lateral-flow immunoassay for the quantum dot-based detection of puerarin. Biosens Bioelectron 2016; 81:358-362. [PMID: 26991602 DOI: 10.1016/j.bios.2016.03.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/26/2015] [Accepted: 01/26/2016] [Indexed: 01/01/2023]
Abstract
In this study, a rapid (within 10min) quantitative lateral-flow immunoassay using a quantum dots (QDs)-antibody probe was developed for the analysis of puerarin (PUE) in water and biological samples. The competitive immunoassay was based on anti-PUE monoclonal antibody conjugated with QDs (detection reagent). Secondary antibody was immobilized on one end of a nitrocellulose membrane (control line) and PUE-bovine serum albumin conjugate was immobilized on the other end (test line). In the quantitative experiment, the detection results were scanned using a membrane strip reader and a detection curve (regression equation: y=-0.11ln(x)+0.979, R(2)=0.9816) representing the averages of the scanned data was obtained. This curve was linear from 1 to 10μg/mL. The IC50 value was 75.58ng/mL and the qualitative detection limit of PUE was 5.8ng/mL. The recovery of PUE added to phosphate-buffered saline and biological samples was in the range of 97.38-116.56%. To our knowledge, this is the first report of the quantitative detection of a natural product by QDs-based immunochromatography, which represents a powerful tool for rapidly screening PUE in plant materials and other biological samples.
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Affiliation(s)
- Huihua Qu
- Center of Scientific Experiment, Beijing University of Chinese Medicine, China
| | - Yue Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, China
| | - Baoping Qu
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, China
| | - Hui Kong
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, China
| | - Gaofeng Qin
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, China
| | - Shuchen Liu
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, China
| | - Jinjun Cheng
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, China
| | - Qingguo Wang
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, China.
| | - Yan Zhao
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, China.
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Sakamoto S, Yusakul G, Pongkitwitoon B, Tanaka H, Morimoto S. Colloidal gold-based indirect competitive immunochromatographic assay for rapid detection of bioactive isoflavone glycosides daidzin and genistin in soy products. Food Chem 2016; 194:191-5. [PMID: 26471543 DOI: 10.1016/j.foodchem.2015.08.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 07/13/2015] [Accepted: 08/02/2015] [Indexed: 12/16/2022]
Abstract
Daidzin (DZ) and genistin (GEN) are two major soy isoflavone glycosides isolated from soybeans. Soy products containing isoflavones have recently been widely accepted for commercial use. However, the Japanese Government has suggested that soy isoflavone intake should be limited because of their estrogenic effects due to their interactions with estrogen receptors. In this study, we established a one-step indirect competitive immunochromatographic assay (ICA) for rapid and sensitive detection of total isoflavone glycosides (DZ and GEN) using gold nanoparticles conjugated with a monoclonal antibody against DZ. This assay was able to be completed in 15min following the immersion of a test strip in an analyte solution. Furthermore, the limit of detection for the total amount of isoflavone glycosides was ∼125ngmL(-1). Considering that the major soy isoflavone glycosides found in soy products are DZ and GEN, this study demonstrates the potential use of ICA for the assessments of over consumption of isoflavones in soy supplements and foods, which would increase the safe dietary intake of soy products.
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Affiliation(s)
- Seiichi Sakamoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Gorawit Yusakul
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Benyakan Pongkitwitoon
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroyuki Tanaka
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Satoshi Morimoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Inyai C, Komaikul J, Kitisripanya T, Tanaka H, Sritularak B, Putalun W. Development of a Rapid Immunochromatographic Strip Test for the Detection of Mulberroside A. PHYTOCHEMICAL ANALYSIS : PCA 2015; 26:423-7. [PMID: 26096098 DOI: 10.1002/pca.2576] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 05/04/2015] [Accepted: 05/06/2015] [Indexed: 05/21/2023]
Abstract
INTRODUCTION Mulberroside A (MuA) is the major active anti-tyrosinase compound in the root bark extract of Morus alba L. (Moraceae). Typically, MuA is widely employed as an active ingredient in whitening cosmetics. A rapid and simple assay system utilizing a small quantity of test sample is essential for the detection of MuA in large number of samples. An immunoassay using highly specific MuA polyclonal antibodies may be useful for the determination of small quantities of MuA in test samples. OBJECTIVE To establish a rapid qualitative MuA test, an immunochromatographic strip test was developed using anti-MuA polyclonal antibodies (anti-MuA PAb). METHODOLOGY The qualitative assay was based on a competitive immunoassay where the detection reagent consisted of anti-MuA PAb colored with colloidal gold particles. The capture reagent was a MuA-ovalbumin (MuA-OVA) conjugate immobilized on the test strip membrane. RESULTS A sample containing MuA and the detection reagent were incubated together with immobilized capture reagent on a nitrocellulose membrane. When MuA was present, it competed with the immobilized conjugates on the strip membrane to bind a limited amount of colored antibodies; thus, a positive sample showed no color on the capture spot zone. The detection limit for the strip test was 2 µg/mL. The developed immunochromatographic strip test was utilized to determine MuA in plants, medical preparations and cosmetic samples. CONCLUSION This immunochromatographic strip test is advantageous as a rapid, simple and sensitive screening method for the detection of MuA in plant extracts, cosmetic samples and pharmaceutical products.
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Affiliation(s)
- Chadathorn Inyai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Jukrapun Komaikul
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Tharita Kitisripanya
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Boonchoo Sritularak
- Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University, Khon Kaen University, Khon Kaen, 40002, Thailand
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Screening of Glycyrrhiza uralensis Fisch. ex DC. containing high concentrations of glycyrrhizin by Eastern blotting and enzyme-linked immunosorbent assay using anti-glycyrrhizin monoclonal antibody for selective breeding of licorice. J Nat Med 2014; 68:717-22. [DOI: 10.1007/s11418-014-0847-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 05/06/2014] [Indexed: 10/25/2022]
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Han T, Lam JWY, Zhao N, Gao M, Yang Z, Zhao E, Dong Y, Tang BZ. A fluorescence-switchable luminogen in the solid state: a sensitive and selective sensor for the fast “turn-on” detection of primary amine gas. Chem Commun (Camb) 2013; 49:4848-50. [DOI: 10.1039/c3cc41414k] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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14
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Yang Z, Qin W, Lam JWY, Chen S, Sung HHY, Williams ID, Tang BZ. Fluorescent pH sensor constructed from a heteroatom-containing luminogen with tunable AIE and ICT characteristics. Chem Sci 2013. [DOI: 10.1039/c3sc50648g] [Citation(s) in RCA: 180] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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15
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Standardization of Licorice and TCM Formulations Using Eastern Blot Fingerprinting Analysis. J CHEM-NY 2013. [DOI: 10.1155/2013/573070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
To prepare the antiglycyrrhizin (GC) monoclonal antibody (MAb), GC was treated with NaIO4resulting in aldehyde which can be combined with carrier protein. An antigen conjugate was performed by a matrix-assisted laser desorption/ionization TOF mass spectrometry to determine the hapten numbers in the conjugate. Anti-GC MAb was prepared from a hybridoma which was fixed from the spleen cells producing anti-GC MAb and the myeloma cells after immunization. The TCM and licorice extract were developed by TLC and blotted to a polyvinylidene difluoride (PVDF) membrane. The membrane was treated by NaIO4and protein, enzyme labeled secondary MAb, and finally substrate was added. Clear spot appeared on PVDF membrane identifying GC against a background containing large amount of impurities. In eastern blotting, the GC molecule was divided into two functions. The aglycone part is recognized as an epitope and the sugar moiety can be combined to membrane. The specific reactivity of sugar moiety in the GC molecule against anti-GC MAb might be modified by the NaIO4treatment on the membrane because glycyrrhetic acid 3-O-glucuronide can be stained although the cross-reactivity is only 4.3%. Eastern blotting for GC can not only apply for the standardization of licorice and TCM, but also it can open for the other bioactive products.
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A rapid one-step immunochromatographic assay for the detection of asiaticoside. J Nat Med 2011; 66:279-83. [DOI: 10.1007/s11418-011-0582-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Accepted: 08/09/2011] [Indexed: 11/26/2022]
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17
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Liu Y, Yu Y, Lam JWY, Hong Y, Faisal M, Yuan WZ, Tang BZ. Simple biosensor with high selectivity and sensitivity: thiol-specific biomolecular probing and intracellular imaging by AIE fluorogen on a TLC plate through a thiol-ene click mechanism. Chemistry 2010; 16:8433-8. [PMID: 20544746 DOI: 10.1002/chem.200902505] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A handy, specific, sensitive bioprobe has been developed. Tetraphenylethene (TPE) was functionalized by a maleimide (MI) group, giving a TPE-MI adduct that was nonemissive in both solution and the solid state. It was readily transformed into a fluorogen showing an aggregation-induced emission (AIE) property by the click addition of thiol to its MI pendant. The click reaction and the AIE effect enabled TPE-MI to function as a thiol-specific bioprobe in the solid state. Thus, the spot of TPE-MI on a TLC plate became emissive when it had been exposed to L-cysteine, an amino acid containing a thiol group, but remained nonemissive when exposed to other amino acids that lack free thiol units. The thiol-activated emission was rapid and strong, readily detected by the naked eye at an analyte concentration as low as approximately 1 ppb, thanks to the "lighting up" nature of the bioprobing process. Similarly, the emission of TPE-MI was turned on only by the proteins containing free thiol units, such as glutathione. Clear fluorescence images were taken when living cells were stained by using TPE-MI as a visualization agent, affording a facile fluorescent maker for mapping the distribution of thiol species in cellular systems.
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Affiliation(s)
- Yang Liu
- Department of Chemistry, Institute of Molecular Functional Materials, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
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Zou Q, Zhan Y, Wei P, Ouyang P. Isolation and Characterization of Related Impurities of Monoammonium Glycyrrhizinate and Development of RP-HPLC Method for Quality Control Study. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070903091704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Qiaogen Zou
- a College of Life Science and Pharmaceutical Engineering, Nanjing University of Technology , Nanjing, P. R. China
- b Center for Instrumental Analysis, China Pharmaceutical University , Nanjing, P. R. China
| | - Ying Zhan
- b Center for Instrumental Analysis, China Pharmaceutical University , Nanjing, P. R. China
| | - Ping Wei
- a College of Life Science and Pharmaceutical Engineering, Nanjing University of Technology , Nanjing, P. R. China
| | - Pingkai Ouyang
- a College of Life Science and Pharmaceutical Engineering, Nanjing University of Technology , Nanjing, P. R. China
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Imsungnoen N, Phrompittayarat W, Ingkaninan K, Tanaka H, Putalun W. Immunochromatographic assay for the detection of pseudojujubogenin glycosides. PHYTOCHEMICAL ANALYSIS : PCA 2009; 20:64-67. [PMID: 18816474 DOI: 10.1002/pca.1098] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
INTRODUCTION Bacopa monnieri contains pseudojujubogenin glycosides as pharmacologically active compounds. In order to screen large numbers of plant samples for the presence of pseudojujubogenin glycosides, a rapid and simple assay system is required for application to small quantities of test materials. Immunoassays using monoclonal antibodies could be useful for the determination of small quantities of pseudojujubogenin glycosides in plant extracts. OBJECTIVE The objective of this work was to develop a simple method for the detection of pseudojujubogenin glycosides by the immunochromatographic strip test using anti-bacopaside I monoclonal antibody. METHODOLOGY The qualitative assay was based on a competitive immunoassay in which the detector reagent consisted of a colloidal gold particle coated with the respective anti-bacopaside I MAb. The capture reagent was a bacopaside I-human serum albumin conjugate immobilised onto a test strip membrane. RESULTS The sample containing pseudojujubogenin glycosides and the detection reagent were incubated with the immobilised capture reagent. The glycosides in the sample competed in binding to the limited amount of antibodies in the detection reagent with the immobilised bacopaside I-HSA conjugates and, hence, positive samples showed no colour in the capture spot zone. The detection limit for the strip test was 125 ng/mL. CONCLUSION The assay system was found to be useful as a rapid and simple screening method for the detection of pseudojujubogenin glycosides in plants.
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Affiliation(s)
- Natnapa Imsungnoen
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
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Zhang Q, Ye M. Chemical analysis of the Chinese herbal medicine Gan-Cao (licorice). J Chromatogr A 2008; 1216:1954-69. [PMID: 18703197 DOI: 10.1016/j.chroma.2008.07.072] [Citation(s) in RCA: 375] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 06/28/2008] [Accepted: 07/03/2008] [Indexed: 12/13/2022]
Abstract
Gan-Cao, or licorice, is a popular Chinese herbal medicine derived from the dried roots and rhizomes of Glycyrrhiza uralensis, G. glabra, and G. inflata. The main bioactive constituents of licorice are triterpene saponins and various types of flavonoids. The contents of these compounds may vary in different licorice batches and thus affect the therapeutic effects. In order to ensure its efficacy and safety, sensitive and accurate methods for the qualitative and quantitative analyses of saponins and flavonoids are of significance for the comprehensive quality control of licorice. This review describes the progress in chemical analysis of licorice and its preparations since 2000. Newly established methods are summarized, including spectroscopy, thin-layer chromatography, gas chromatography, high-performance liquid chromatography (HPLC), liquid chromatography/mass spectrometry (LC/MS), capillary electrophoresis, high-speed counter-current chromatography (HSCCC), electrochemistry, and immunoassay. The sensitivity, selectivity and powerful separation capability of HPLC and CE allows the simultaneous detection of multiple compounds in licorice. LC/MS provides characteristic fragmentations for the rapid structural identification of licorice saponins and flavonoids. The combination of HPLC and LC/MS is currently the most powerful technique for the quality control of licorice.
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Affiliation(s)
- Qingying Zhang
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, No. 38 Xueyuan Road, Beijing 100191, China
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Zhao Su-Ping He J, Liu W, Deng AX, Nan TG, Wang BM, Zhai ZX, Li ZH. Development of a lateral flow dipstick immunoassay for the rapid detection of glycyrrhizic acid. FOOD AGR IMMUNOL 2007. [DOI: 10.1080/09540100601072875] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Zhao J, Li G, Wang BM, Liu W, Nan TG, Zhai ZX, Li ZH, Li QX. Development of a monoclonal antibody-based enzyme-linked immunosorbent assay for the analysis of glycyrrhizic acid. Anal Bioanal Chem 2006; 386:1735-40. [PMID: 17006677 PMCID: PMC7079850 DOI: 10.1007/s00216-006-0780-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2006] [Revised: 08/11/2006] [Accepted: 08/15/2006] [Indexed: 12/01/2022]
Abstract
Glycyrrhizic acid (GL) is a major active compound of licorice. The specific monoclonal antibody (MAb) (designated as 8F8A8H42H7) against GL was produced with the immunogen GL–BSA conjugate. The dissociation constant (Kd) value of the MAb was approximately 9.96×10−10 M. The cross reactivity of the MAb with glycyrrhetic acid was approximately 2.6%. The conventional indirect competitive enzyme-linked immunosorbent assay (icELISA) and simplified icELISA adapted with a modified procedure were established using the MAb. The IC50 value and the detect range by the conventional icELISA were 1.1 ng mL−1 and 0.2–5.1 ng mL−1, respectively. The IC50 value and the detect range by the simplified icELISA were 5.3 ng mL−1 and 1.2–23.8 ng mL−1, respectively. The two icELISA formats were used to analyze GL contents in the roots of wild licorice and different parts of cultivated licorice (Glycyrrhiza uralensis Fisch). The results obtained with the two icELISAs agreed well with those of the HPLC analysis. The correlation coefficient was more than 0.98 between HPLC and the two icELISAs. The two icELISAs were shown to be appropriate, simple, and effective for the quality control of raw licorice root materials.
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Affiliation(s)
- Jing Zhao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100094 People’s Republic of China
| | - Gang Li
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100094 People’s Republic of China
| | - Bao-min Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100094 People’s Republic of China
| | - Wei Liu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100094 People’s Republic of China
| | - Tie-gui Nan
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100094 People’s Republic of China
| | - Zhi-xi Zhai
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100094 People’s Republic of China
| | - Zhao-hu Li
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100094 People’s Republic of China
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii, Honolulu, HI, 96822 USA
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